Table of contents

1. Overview of Cell Biology2h 49m
2. Chemical Components of Cells1h 14m
3. Energy1h 33m
4. DNA, Chromosomes, and Genomes2h 31m
5. DNA to RNA to Protein2h 31m
6. Proteins1h 36m
7. Gene Expression1h 42m
8. Membrane Structure1h 4m
- The Lipid Bilayer
  38m
- Membrane Proteins
  25m
9. Transport Across Membranes1h 52m
10. Anerobic Respiration1h 5m
11. Aerobic Respiration1h 11m
12. Photosynthesis52m
13. Intracellular Protein Transport2h 18m
14. Cell Signaling1h 28m
15. Cytoskeleton and Cell Movement1h 39m
16. Cell Division3h 5m
17. Meiosis and Sexual Reproduction50m
18. Cell Junctions and Tissues48m
19. Stem Cells13m
- Stem Cells
  13m
20. Cancer44m
21. The Immune System1h 6m
22. Techniques in Cell Biology1h 41m

5. DNA to RNA to Protein

mRNA Processing

Cell Biology

5. DNA to RNA to Protein

mRNA Processing

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Multiple Choice

Guide RNAs are responsible for what?

Guiding the spliceosome to the correct splicing sequence

Determining the position of RNA editing

Adding the poly-A tail to the mRNA

Adding the 5' cap to the mRNA

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Verified step by step guidance

Understand the role of guide RNAs (gRNAs) in the context of RNA editing. gRNAs are short RNA sequences that are complementary to the target RNA sequence and are used to direct the editing machinery to specific sites on the RNA.

Recognize that RNA editing is a post-transcriptional process where the nucleotide sequence of an RNA molecule is altered. This can involve the insertion, deletion, or substitution of nucleotides.

Identify that the primary function of guide RNAs is to determine the position of RNA editing by base-pairing with the target RNA, thereby guiding the editing enzymes to the correct location.

Differentiate the role of guide RNAs from other processes such as splicing, polyadenylation, and capping. Splicing involves the removal of introns, polyadenylation adds a poly-A tail, and capping adds a 5' cap to mRNA, none of which are directed by guide RNAs.

Conclude that guide RNAs are specifically involved in determining the position of RNA editing, distinguishing their function from other RNA processing events.